Roofing joint



Aug 29 1944 DOE 2,356,833

. ROOFING JOINT Filed OOt SO, 1941 3 sheets sheet l IN V EN TOR.

BY QWJM M JN ATTORNEYS.

H. H. DOE

ROOFING JOINT Aug. 29, 1944.

s sheets-sheet 2 Filed 001:. 50,'- 1941 INVENTOR.

ATTORNEYS.

Aug. 29, 1944. H. H. DOE 2,356,833

ROOFING JOINT Filed Oct. 30, 1 941 5 Sheets-Sheet 5 7 INVENTOR.

A TTORNEYS.

Patented Aug. 29, 1944 UNITED STATES PATENT ()FFICE ROOFING JOINT HansH. Doe, Milwaukee, Wis.

Application October 30, 1941, Serial No. 417,062

8 Claims.

Those types of roofing in which metallic roofing sheets have their sideedges upturned or flanged, either to form a standing seam or a battenseam, have often not proven satisfactory because their construction hasbeen such that sufiicient free lengthwise movement due to contraction orexpansion of the .sheets has not been permitted. Also, in case ofstanding seam roofs, destructive total area horizontal movement hasoften been unintentionally allowed. Either of these faults lead to quickfailure of the roof. Furthermore, the joints of the standing seam orbatten seam roofing have been formed and finished on the job, making thelabor cost for such roofing a large part of the total cost.

The objects of the present invention are to provide a roofing structureusing roofing sheets of the flanged side type in which the adjoiningupturned or flanged edges are joined together and any sheet fromafiecting or exerting pressure on the next adjoining sheet.

A further object of the invention is to provide a seamed type roofingstructure in which the roofing sheets or plates are held down against Ithe roof by clips fastened to the sheathing or rafters, and which has asnap on or slide-on preformed or partially pre-formed covering memherwhich contacts with the sides of adjacent flanges of sheets or plates,thus reducing by a large percentage the labor required to install theThe invention further consists in the several features hereinafter setforth and more particularly defined by claims at the conclusion hereof.

In the drawings:

Fig. l is a perspective view of a roofing structure embodying theinvention;

Fig. 2 is an enlarged detail vertical sectional View through the seam orjoint;

Fig. 3 is a detail plan View of the joint, parts being broken away andparts'shown in section;

Fig. 4 is a sectional view similar to Fig. 2 showing certainmodifications;

Figs. 5, 6, and 7 are each sectional views similar to Fig, 2 showingother modifications;

Fig. 8 is a detail plan view of the joint shown in Fig. '7, parts beingbroken away and parts shown in section;

Fig. 9 is a view of the coverin material in a preliminary form stage;

Fig. 10 shows certain modifications, in the form of the base of theroofing sheet;

Fig. 11 is a vertical sectional view similar to Fig. 2 wherein theplates are spaced apart and their upturned edges associated with abatten strip;

Fig. 12 is a Vertical sectional view similar to Fig, 11 showing certainmodifications;

Fig. 13 is a detail vertical sectional view similar. to Fig. 12 showinga modified form of joint partially completed;

Fig. 14 is a sectional view similar to Fig.- 13 showing thi jointcompleted.

Referring to Figs. 1 and 10 of the drawings, the roofing material isinthe form of plain sheet metal l5 with upturned or flanged sides 16 asshownsin Figfl or of corrugated sheet metal body H with upturned orflanged sides 18 as shown in Fig, 10, the corrugations extending, eithervertically or horizontally of the sheet to reinforce the same. Thesesheets or plates are of certain definite lengthsv and are associatedtogether lengthwise by overlapping the lower end of an upper plate withthe upper end of a lower plate which upper end is secured to the frameof the roof by nails I9 or other suitable fastening. Lengthwiseextending lengths of assembled plates are arranged next to similar setsof assembled plates at each side and are joined together at theirupturned or flanged sides It by a joint structure embodying theinvention... In Figs. 2 and 3 this joint structure includes a series ofclips 20, fastening means for said clips, and a covering 2 l. The clips2b are small curved sheet metal pieces punched to take two or more longnails 22 which are driven into the framework 23 of the roof, the nailheads exerting a clamping force on the clip which in turn by engagingthe tops of the adjacent flanges l6 exerts a downward thrust thereon soas to keep said sheet or plates in proper vertical alinement without,however, preventing relative sliding movement between the clip, andeither of the sheets or plates engaged thereby, so that contraction andexpansion of the metal roofing material due to changes of temperaturemay be taken care of without danger of having the roof buckle or ofloosening the fastenin means. To provide a weathering joint, covermembers 2| arearranged to act as hoods to project down over the exposedupper ends of the flanges l6 and cover over the space between saidflanges. This covering or the members 2| are formed by forming a sheetmetal strip into generally channel shape form with the sidesthereoireversely curved to form curved parts 24 and 25,

these channeled strips having overlapping engagement at their ends witheach other as shown in Fig, 1, with the lowermost strip anchored at itsupper end to the roof frame by a nail 26. These covering strips may bepre-formed, and the curved parts 24 and 25 will permit them to besecured in position by pushing them down over the clips 20, so thattheir curved edges 25 are free to snap into yielding engagement with thesides of the flanges l6 and into engagement with said clips at thecurved parts 24 so as to connect them with the fastening means or nails22. The connection of the covering member 2i with the flanges I6 permitsrelative movement between said strips and the flanges 16 of the roofingplate or section to compensate for any movement of these parts due tocontraction or expansion of the metal thereof.

Instead of the form shown in Fig. 2 the cover strips 2| of generallychannel form may be formed with longer sides having straight sideportions 21 in engagement with the sides of the flanges [6 as shown inFig. 4.

To keep the flanges a definite distance apart the clips 28 may havespaced lengthwise extending grooves 29 to receive the upper edges of theflanges, as shown in Fig. 5, these clips being secured similarly to thefirst form by the nails 39 and having cover strips 3| snapped thereover,similar to Fig. 2.

Another form of the joint is shown in Fig. 6 wherein the clip 32 is bentat its sides to form a flat top part 33 for the fastening means 34, andthe cover strips 35 are formed to provide-pointed ridges 36.

In the form shown in Figs. 7 and 8 the clip is formed to provide a tube31 flanged at its bottom 38 and at its top 39, the fastening means 40passing down through the tube and exerting pressure thereon to in turnput pressure on the flanges l6 of the roofing plates to hold them inposition, the upper flange 39 of this clip forming a gripping ledgeadapted to be engaged by the cover strip 41 which is generally similarto the cover strip 2| of Fig. 2 and having curved sides similar to thesides 25 and adapted to snap over the outer edges of the flanges 39 andengage the sides of the flanges IS.

The cover strips above described may be formed at the factory or in someinstances cover strips initially formed to a readily stackable form asshown at 2P Fig. 9, may be finish'formed during the assembly of the roofparts on the roof.

In those cases where it is desired to more widely separate adjoiningsections of the roofing from each other as by a batten strip 43, thejoints shown in Figs. 11 and 12 maybe used. In Fig. 11 the clip 44 issecured to the top of the batten strip 43 by the nails 45 fastening saidstrip 43 to the roof frame 45, and a cover strip 41 extends over the topof the batten strip and the ends of clip 44 and has curved portionsyieldingly engageable with the sides or the flanges Hi.

The form shown in Fig. 12 is similar to that of Fig. 11 except that theclips 48 in this form are provided with spaced grooves 49 to receive theupper ends of the flanges l6. These clips are fastened to the roof andto the batten strip 53 by the nails and the joint is covered and held inlaterally alined position by the cover strip 52.

The form shown in Figs. 13 and 14 is similar to that of Figs. 11 and 12except that the cover strip 53 is formed to he slid onto the clips 48',

similar to the clips 48, and which are fastened to the roof and to thebatten strip 54 by the nails 55. After the cover strip 48 is initiallyslid over the clips as shown in Fig. 13, this cover strip together withthe clips are bent downwardly against the side flanges I5 of the roofingsheets or plates l5 as shown in Fig. 14.

In all of the above forms the upstanding edges of adjacent roofingsheets are free to move lengthwise relative to each other and to thecovering hoods for said edges.

I desire it to be understood that this invention is not to be limited toany particular form or arrangement of parts except in so far as suchlimitations are included in the claims.

What I claim as my invention is:

1. A joint structure for roofing in which the sheet metal roofingmaterial has upturned flanged sides extending from its base at an obtuseangle comprising clamps having parts engaging the top edges of thespaced upturned sides of adjoining sections of said material at spacedintervals to exert a hold down pressure on said sections whilepermitting relative lengthwise movement between said sections andrelative sliding movement between the clamps and said sections to permitcontraction and expansion of said sections without danger of buckling ofthe roofing or of loosening said clamps, and covering means for thespaces between said sections having direct engagement with the sides ofsaid upturned sides adjacent the top portion thereof whereby saidroofing sections will be held down from the upper portions only of saidupturned edges and are free to move lengthwise relative to each otherand to said covering means.

2. A joint structure for roofing in which the sheet metal roofingmaterial has upturned flanged sides extending from its base at an obtuseangle comprising clamps having parts engaging the top edges of thespaced upturned sides of adjoining sections of said material at spacedintervals to exert a hold down pressure on said sections whilepermitting relative lengthwise movement between said sections andrelative sliding movement between the clamps and said sections to permitcontraction and expansion of said sections without danger of buckling ofthe roofing or of loosening said clamps, and covering means for thespaces between said sections having interlocking engagement with saidclamps and direct engagement with the sides of said upturned sidesadjacent the top portion thereof whereby said roofing sections will beheld down from the upper portions only of said upturned edges and arefree to move lengthwise relative to each other and to said coveringmeans.

3. A joint structure for roofing in which metallic sheet roofingmaterial has upturned flanged sides extending from its base portion atan obtuse angle comprising clips engaging the top edges of the spacedupturned sides of adjoining sections of roofing at spaced intervals,fastening means extending between said sections for securing said clipsin operative position while permitting lengthwise shifting of saidsections relative to each other and relative sliding movement betweensaid clips and said sections to permit contraction and expansion of saidsections without danger of buckling of the roofing or of the looseningof said clips, and covering means for the spaces between said sectionshaving interlocking engagement with said clips and direct engagementwith'the sides of said upturned sides adjacent the top thereof to permitadjacent roofing sheets moving lengthwise relative to each other and tosaid covering means.

4. A joint structure for roofing in which the sheet metal roofingmaterial has upturned flanged sides extending from its base at an obtuseangle comprising clamps having parts engaging the top edges of thespaced upturned sides of adjoining sections of said material at spacedintervals to exert a hold down pressure on said sections whilepermitting relative lengthwise movement between said sections andrelative sliding movement between the clamps and said sections to permitcontraction and expansion of said sections without danger of buckling ofthe roofing or of loosening said clamps, and a cover strip having asnap-over connection with said clamps and direct yielding engagementwith said upturned sides adjacent the top portion thereof to permit freelengthwise movement of said sections relative to each other and to saidcover strip.

5. A joint structure for roofing in which metallic sheet roofingmaterial has upsturned flanged sides comprising clips engaging the upperedge portion of the spaced upturned sides of adjoining roofing sectionsat spaced intervals and extending laterally beyond said sides to holddown said sections while permitting relative sliding movement betweensaid clips and either of the sections engaged thereby-and movement ofsaid sections relative to each other so that contraction and expansionof said sections may occur without danger of the roof buckling or ofloosening said clips, batten strips interposed between the flanged sidesof said sections and free of said sides carrying said clips and securedto the frame of the roof, and cover strips for the space between saidadjoining sections completely covering the laterally extending portionsof said clips and the tops of said batten strips and extending intoengagement with said upturned sides.

6. A joint structure for roofing in which metallic sheet roofingmaterial has upturned flanged sides comprising clips engaging the upperedge portion of the spaced upturned sides of adjoining roofing sectionsat spaced intervals and extending laterally beyond said sides to holddown said sections while permitting relative sliding movement betweensaid clips and either of the sections engaged thereby and movement ofsaid sections relative to each other so that contraction and expansionof said sections may occur without danger of the roof buckling or ofloosening said clips, batten strips interposed between the flanged sidesof said sections and free of said sides carrying said clips and securedto the frame of the roof, and cover strips for the space between saidadjoining sections completely covering the laterally extending portionsof said clips, the edges of said cover strips being bent with said clipsto a position for direct engagement with said upturned sides.

7. A joint structure for roofing in which metallic sheet roofingmaterial has upturned flanged sides comprising clips having spacedgrooves engaging with the top edges of adjoining roofing'sections atspaced intervals, fastening means for securing said clips in operativeposition, and a cover strip having an interlocking connection with saidclips and a weather-tight connectiton with the sides of said flanges.

8. A joint structure for roofing in which metallic sheet roofingmaterial has upturned flanged sides comprising clips having flanged endsand a tubular section connecting said ends, fastening means passingthrough the tubular section of each clip and securing it in clampingengagement with the flanged sides of adjoining roofing sections, and acover strip engaging said clips and forming a covering for the spacebetween said sections.

HANS H. DOE.

